1. medical instrument that records electric currents associated with contractions of the heart • Syn: electrocardiograph • Hypernyms: medical instrument • Part Holonyms: cardiac monitor, heart monitor 2. a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles • Syn: ballistocardiograph • Hypernyms: medical instrument • Part Holonyms: cardiac monitor, heart monitor
